[270] | 1 | /*
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| 2 | * TOPPERS ECHONET Lite Communication Middleware
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| 3 | *
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| 4 | * Copyright (C) 2017 Cores Co., Ltd. Japan
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| 5 | *
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| 6 | * ä¸è¨èä½æ¨©è
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| 7 | ã¯ï¼ä»¥ä¸ã®(1)ï½(4)ã®æ¡ä»¶ãæºããå ´åã«éãï¼æ¬ã½ããã¦ã§
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| 8 | * ã¢ï¼æ¬ã½ããã¦ã§ã¢ãæ¹å¤ãããã®ãå«ãï¼ä»¥ä¸åãï¼ã使ç¨ã»è¤è£½ã»æ¹
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| 9 | * å¤ã»åé
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| 10 | å¸ï¼ä»¥ä¸ï¼å©ç¨ã¨å¼ã¶ï¼ãããã¨ãç¡åã§è¨±è«¾ããï¼
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| 11 | * (1) æ¬ã½ããã¦ã§ã¢ãã½ã¼ã¹ã³ã¼ãã®å½¢ã§å©ç¨ããå ´åã«ã¯ï¼ä¸è¨ã®èä½
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| 12 | * 権表示ï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãï¼ãã®ã¾ã¾ã®å½¢ã§ã½ã¼
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| 13 | * ã¹ã³ã¼ãä¸ã«å«ã¾ãã¦ãããã¨ï¼
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| 14 | * (2) æ¬ã½ããã¦ã§ã¢ãï¼ã©ã¤ãã©ãªå½¢å¼ãªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
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| 15 | * ç¨ã§ããå½¢ã§åé
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| 16 | å¸ããå ´åã«ã¯ï¼åé
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| 17 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨
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| 18 | * è
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| 19 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®èä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨
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| 20 | * ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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| 21 | * (3) æ¬ã½ããã¦ã§ã¢ãï¼æ©å¨ã«çµã¿è¾¼ããªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
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| 22 | * ç¨ã§ããªãå½¢ã§åé
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| 23 | å¸ããå ´åã«ã¯ï¼æ¬¡ã®ããããã®æ¡ä»¶ãæºããã
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| 24 | * ã¨ï¼
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| 25 | * (a) åé
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| 26 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨è
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| 27 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®è
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| 28 | * ä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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| 29 | * (b) åé
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| 30 | å¸ã®å½¢æ
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| 31 | ãï¼å¥ã«å®ããæ¹æ³ã«ãã£ã¦ï¼TOPPERSããã¸ã§ã¯ãã«
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| 32 | * å ±åãããã¨ï¼
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| 33 | * (4) æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´æ¥çã¾ãã¯éæ¥çã«çãããããªãæ
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| 34 | * 害ãããï¼ä¸è¨èä½æ¨©è
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| 35 | ããã³TOPPERSããã¸ã§ã¯ããå
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| 36 | 責ãããã¨ï¼
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| 37 | * ã¾ãï¼æ¬ã½ããã¦ã§ã¢ã®ã¦ã¼ã¶ã¾ãã¯ã¨ã³ãã¦ã¼ã¶ããã®ãããªãç
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| 38 | * ç±ã«åºã¥ãè«æ±ãããï¼ä¸è¨èä½æ¨©è
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| 39 | ããã³TOPPERSããã¸ã§ã¯ãã
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| 40 | * å
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| 41 | 責ãããã¨ï¼
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| 42 | *
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| 43 | * æ¬ã½ããã¦ã§ã¢ã¯ï¼ç¡ä¿è¨¼ã§æä¾ããã¦ãããã®ã§ããï¼ä¸è¨èä½æ¨©è
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| 44 | ã
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| 45 | * ãã³TOPPERSããã¸ã§ã¯ãã¯ï¼æ¬ã½ããã¦ã§ã¢ã«é¢ãã¦ï¼ç¹å®ã®ä½¿ç¨ç®ç
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| 46 | * ã«å¯¾ããé©åæ§ãå«ãã¦ï¼ãããªãä¿è¨¼ãè¡ããªãï¼ã¾ãï¼æ¬ã½ããã¦ã§
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| 47 | * ã¢ã®å©ç¨ã«ããç´æ¥çã¾ãã¯éæ¥çã«çãããããªãæ害ã«é¢ãã¦ãï¼ã
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| 48 | * ã®è²¬ä»»ãè² ããªãï¼
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| 49 | *
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| 50 | * @(#) $Id: httpd.c 270 2017-02-09 04:03:47Z coas-nagasima $
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| 51 | */
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| 52 |
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| 53 | #include "httpd.h"
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| 54 | #include <string.h>
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| 55 | #include <stdlib.h>
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| 56 | #include "syssvc/syslog.h"
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| 57 | #include "http-strings.h"
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| 58 | #include "netinet/in.h"
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| 59 | #include "arduino.h"
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| 60 |
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| 61 | #define TRUE 1
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| 62 | #define FALSE 0
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| 63 |
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| 64 | #ifndef _MSC_VER
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| 65 | /* strnlen() is a POSIX.2008 addition. Can't rely on it being available so
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| 66 | * define it ourselves.
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| 67 | */
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| 68 | size_t
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| 69 | strnlen(const char *s, size_t maxlen)
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| 70 | {
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| 71 | const char *p;
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| 72 |
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| 73 | p = memchr(s, '\0', maxlen);
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| 74 | if (p == NULL)
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| 75 | return maxlen;
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| 76 |
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| 77 | return p - s;
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| 78 | }
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| 79 |
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| 80 | void strcpy_s(char *dst, int size, const char *src)
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| 81 | {
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| 82 | int slen = strlen(src);
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| 83 | if (slen >= size)
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| 84 | slen = size - 1;
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| 85 | memcpy(dst, src, slen);
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| 86 | dst[slen] = '\0';
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| 87 | }
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| 88 |
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| 89 | void strcat_s(char *dst, int size, const char *src)
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| 90 | {
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| 91 | int dlen = strlen(dst);
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| 92 | int slen = strlen(src);
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| 93 | if (dlen + slen >= size)
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| 94 | slen = size - 1 - dlen;
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| 95 | memcpy(&dst[dlen], src, slen);
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| 96 | dst[dlen + slen] = '\0';
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| 97 | }
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| 98 | #endif
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| 99 |
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| 100 | int httpd_strnicmp(const char *s1, const char *s2, size_t n)
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| 101 | {
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| 102 | int i;
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| 103 | char c1, c2;
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| 104 |
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| 105 | for (i = 0; i < n; i++, s1++, s2++) {
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| 106 | c1 = *s1;
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| 107 | c2 = *s2;
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| 108 | if (c1 == '\0' && c2 == '\0')
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| 109 | return 0;
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| 110 |
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| 111 | if (c1 >= 'a' && c1 <= 'z')
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| 112 | c1 += 'A' - 'a';
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| 113 |
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| 114 | if (c2 >= 'a' && c2 <= 'z')
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| 115 | c2 += 'A' - 'a';
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| 116 |
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| 117 | if (c1 < c2)
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| 118 | return -1;
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| 119 |
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| 120 | if (c1 > c2)
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| 121 | return 1;
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| 122 | }
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| 123 |
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| 124 | return 0;
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| 125 | }
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| 126 |
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| 127 | size_t
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| 128 | strlncat(char *dst, size_t len, const char *src, size_t n)
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| 129 | {
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| 130 | size_t slen;
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| 131 | size_t dlen;
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| 132 | size_t rlen;
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| 133 | size_t ncpy = 0;
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| 134 |
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| 135 | slen = strnlen(src, n);
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| 136 | dlen = strnlen(dst, len);
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| 137 |
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| 138 | if (dlen < len) {
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| 139 | rlen = len - dlen;
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| 140 | ncpy = slen < rlen ? slen : (rlen - 1);
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| 141 | memcpy(dst + dlen, src, ncpy);
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| 142 | dst[dlen + ncpy] = '\0';
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| 143 | }
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| 144 |
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| 145 | //assert(len > slen + dlen);
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| 146 | //return slen + dlen;
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| 147 | return ncpy;
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| 148 | }
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| 149 |
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| 150 | extern struct httpd_state *uploding;
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| 151 |
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| 152 | int websvr_message_begin(http_parser *p)
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| 153 | {
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| 154 | struct httpd_state *s = get_context(p);
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| 155 | memset(&s->message, 0, sizeof(s->message));
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| 156 | s->message.message_begin_cb_called = TRUE;
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| 157 | return 0;
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| 158 | }
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| 159 |
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| 160 | int websvr_request_url(http_parser *p, const char *buf, size_t len)
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| 161 | {
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| 162 | struct httpd_state *s = get_context(p);
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| 163 |
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| 164 | strlncat(s->message.request_url, sizeof(s->message.request_url), buf, len);
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| 165 |
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| 166 | char *ptr = strrchr(s->message.request_url, '?');
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| 167 | if (ptr != NULL) {
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| 168 | ptr[0] = '\0';
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| 169 | s->query = &ptr[1];
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| 170 | }
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| 171 | else
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| 172 | s->query = NULL;
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| 173 |
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| 174 | /* ""ã"/"ãªã"index.html"ã«å¤æ´ */
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| 175 | if ((s->message.request_url[0] == '\0') || ((s->message.request_url[0] == '/') && (s->message.request_url[1] == '\0'))) {
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| 176 | s->filename = &s->message.filename[sizeof(s->message.filename) - 2];
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| 177 | strcpy_s(s->filename, sizeof(s->message.request_url) + 2, "0:");
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| 178 | strcat_s(s->filename, sizeof(s->message.request_url) + 2, http_index_html);
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| 179 | s->file.redirect = 1;
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| 180 | }
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| 181 | /* "/~/"ãªãSDã«ã¼ãããèªã¿è¾¼ã¿ */
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| 182 | else if ((s->message.request_url[0] == '/') && (s->message.request_url[1] == '~') && (s->message.request_url[2] == '/')) {
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| 183 | s->filename = &s->message.filename[sizeof(s->message.filename) - 2 - sizeof(http_www) - 1 + 2];
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| 184 | memcpy(s->filename, "1:", 2);
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| 185 | memcpy(s->filename, http_www, sizeof(http_www) - 1);
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| 186 | }
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| 187 | else {
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| 188 | s->filename = &s->message.filename[sizeof(s->message.filename) - 2];
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| 189 | memcpy(s->filename, "0:", 2);
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| 190 | }
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| 191 | return 0;
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| 192 | }
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| 193 |
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| 194 | int websvr_response_status(http_parser *p, const char *buf, size_t len)
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| 195 | {
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| 196 | struct httpd_state *s = get_context(p);
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| 197 |
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| 198 | strlncat(s->message.response_status, sizeof(s->message.response_status), buf, len);
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| 199 |
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| 200 | return 0;
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| 201 | }
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| 202 |
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| 203 | int websvr_header_field(http_parser *p, const char *buf, size_t len)
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| 204 | {
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| 205 | struct httpd_state *s = get_context(p);
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| 206 | struct message *m = &s->message;
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| 207 |
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| 208 | if (strncmp("Referer", buf, len) == 0) {
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| 209 | m->num_headers = 1;
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| 210 | }
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| 211 | else if (strncmp("Host", buf, len) == 0) {
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| 212 | m->num_headers = 2;
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| 213 | }
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| 214 | else if (strncmp("Upgrade", buf, len) == 0) {
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| 215 | m->num_headers = 3;
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| 216 | }
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| 217 | else if (strncmp("Connection", buf, len) == 0) {
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| 218 | m->num_headers = 4;
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| 219 | }
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| 220 | else if (strncmp("Sec-WebSocket-Key", buf, len) == 0) {
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| 221 | m->num_headers = 5;
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| 222 | }
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| 223 | else if (strncmp("Origin", buf, len) == 0) {
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| 224 | m->num_headers = 6;
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| 225 | }
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| 226 | else if (strncmp("Sec-WebSocket-Protocol", buf, len) == 0) {
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| 227 | m->num_headers = 7;
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| 228 | }
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| 229 | else if (strncmp("Sec-WebSocket-Version", buf, len) == 0) {
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| 230 | m->num_headers = 8;
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| 231 | }
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| 232 | else {
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| 233 | m->num_headers = 0;
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| 234 | }
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| 235 |
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| 236 | return 0;
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| 237 | }
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| 238 |
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| 239 | int websvr_header_value(http_parser *p, const char *buf, size_t len)
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| 240 | {
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| 241 | struct httpd_state *s = get_context(p);
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| 242 | struct message *m = &s->message;
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| 243 |
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| 244 | switch (m->num_headers) {
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| 245 | case 1:
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| 246 | strlncat(m->referer, sizeof(m->referer), buf, len);
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| 247 | break;
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| 248 | case 2:
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| 249 | strlncat(m->host, sizeof(m->host), buf, len);
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| 250 | break;
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| 251 | case 3:
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| 252 | strlncat(m->upgrade, sizeof(m->upgrade), buf, len);
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| 253 | break;
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| 254 | case 4:
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| 255 | strlncat(m->connection, sizeof(m->connection), buf, len);
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| 256 | break;
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| 257 | case 5:
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| 258 | strlncat(m->sec_websocket_key, sizeof(m->sec_websocket_key), buf, len);
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| 259 | break;
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| 260 | case 6:
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| 261 | strlncat(m->origin, sizeof(m->origin), buf, len);
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| 262 | break;
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| 263 | case 7:
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| 264 | strlncat(m->sec_websocket_protocol, sizeof(m->sec_websocket_protocol), buf, len);
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| 265 | break;
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| 266 | case 8:
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| 267 | strlncat(m->sec_websocket_version, sizeof(m->sec_websocket_version), buf, len);
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| 268 | break;
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| 269 | }
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| 270 |
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| 271 | return 0;
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| 272 | }
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| 273 |
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| 274 | int websvr_headers_complete(http_parser *p)
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| 275 | {
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| 276 | struct httpd_state *s = get_context(p);
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| 277 |
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| 278 | s->message.method = p->method;
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| 279 | s->message.http_major = p->http_major;
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| 280 | s->message.http_minor = p->http_minor;
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| 281 | s->message.headers_complete_cb_called = TRUE;
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| 282 | s->message.should_keep_alive = http_should_keep_alive(p);
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| 283 |
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| 284 | if ((s->message.method == HTTP_GET)
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| 285 | && httpd_strnicmp(http_websocket, s->message.upgrade, sizeof(s->message.upgrade)) == 0) {
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| 286 | s->in.state = IN_STATE_WEBSOCKET;
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| 287 | s->state = STATE_WEBSOCKET;
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| 288 | s->close_req = 0;
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| 289 | websocket_init(&s->websocket, s->cepid);
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| 290 | return 0;
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| 291 | }
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| 292 | else if (s->message.method == HTTP_GET) {
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| 293 | s->in.state = IN_STATE_RESPONSE;
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| 294 | s->out.state = OUT_STATE_OPEN_GET_FILE;
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| 295 | return 1;
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| 296 | }
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| 297 | else if (s->message.method == HTTP_POST) {
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| 298 | if ((s->parser.content_length > 16 * 1024)
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| 299 | || httpd_strnicmp(s->message.request_url, http_upload, sizeof(http_upload) - 1) != 0) {
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| 300 | goto error;
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| 301 | }
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| 302 |
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| 303 | if (uploding == NULL) {
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| 304 | uploding = s;
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| 305 | // ã¢ãããã¼ãå
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| 306 | ã¯SDã«ã¼ã
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| 307 | s->filename[0] = '1';
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| 308 | syslog(LOG_NOTICE, "create: %s.%d %s", s->addr, ((T_IPV4EP *)s->dst)->portno, s->filename);
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| 309 | if (!httpd_fs_create(s->filename, &s->file)) {
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| 310 | goto error;
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| 311 | }
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| 312 |
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| 313 | s->in.state = IN_STATE_UPLOAD;
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| 314 | }
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| 315 | else if (strcmp(s->filename, uploding->filename) == 0) {
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| 316 | syslog(LOG_NOTICE, "collision: %s.%d %s", s->addr, ((T_IPV4EP *)s->dst)->portno, s->filename);
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| 317 | goto error;
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| 318 | }
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| 319 | else {
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| 320 | s->in.state = IN_STATE_UPLOAD_WAIT;
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| 321 | s->in.wait = true;
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| 322 | }
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| 323 |
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| 324 | s->out.state = OUT_STATE_WAIT_POST_BODY;
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| 325 | s->out.wait = true;
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| 326 | return 0;
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| 327 | }
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| 328 | else {
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| 329 | s->state = STATE_CLOSING;
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| 330 | return 1;
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| 331 | }
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| 332 | error:
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| 333 | s->filename = NULL;
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| 334 | s->response_body = http_content_403;
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| 335 | s->response_pos = 0;
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| 336 | s->response_len = sizeof(http_content_403) - 1;
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| 337 |
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| 338 | s->out.statushdr = http_header_403;
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| 339 | s->out.state = OUT_STATE_SEND_HEADER;
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| 340 | return 1;
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| 341 | }
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| 342 |
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| 343 | int websvr_body(http_parser *p, const char *buf, size_t len)
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| 344 | {
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| 345 | struct httpd_state *s = get_context(p);
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| 346 |
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| 347 | if (s->message.body_is_final) {
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| 348 | syslog(LOG_ERROR, "\n\n *** Error http_body_is_final() should return 1 "
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| 349 | "on last on_body callback call "
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| 350 | "but it doesn't! ***\n\n");
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| 351 | s->state = STATE_CLOSING;
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| 352 | return 0;
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| 353 | }
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| 354 |
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| 355 | httpd_fs_write(&s->file, buf, len);
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| 356 |
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| 357 | s->message.body_size += len;
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| 358 | s->message.body_is_final = http_body_is_final(p);
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| 359 |
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| 360 | if (s->message.body_is_final) {
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| 361 | syslog(LOG_NOTICE, "close: %s.%d %s", s->addr, ((T_IPV4EP *)s->dst)->portno, s->filename);
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| 362 | httpd_fs_close(&s->file);
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| 363 | memset(&s->file, 0, sizeof(s->file));
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| 364 |
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| 365 | strcpy_s(RubyFilename, sizeof(RubyFilename), s->filename);
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| 366 | s->reset = 1;
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| 367 |
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| 368 | s->filename = NULL;
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| 369 | s->response_body = http_content_200;
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| 370 | s->response_pos = 0;
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| 371 | s->response_len = sizeof(http_content_200) - 1;
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| 372 |
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| 373 | uploding = NULL;
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| 374 | s->in.state = IN_STATE_END;
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| 375 | s->out.state = OUT_STATE_BODY_RECEIVED;
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| 376 | }
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| 377 |
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| 378 | return 0;
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| 379 | }
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| 380 |
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| 381 | int websvr_message_complete(http_parser *p)
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| 382 | {
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| 383 | struct httpd_state *s = get_context(p);
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| 384 | if (s->message.should_keep_alive != http_should_keep_alive(p)) {
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| 385 | syslog(LOG_ERROR, "\n\n *** Error http_should_keep_alive() should have same "
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| 386 | "value in both on_message_complete and on_headers_complete "
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| 387 | "but it doesn't! ***\n\n");
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| 388 | assert(0);
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| 389 | }
|
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| 390 |
|
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| 391 | if (s->message.body_size &&
|
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| 392 | http_body_is_final(p) &&
|
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| 393 | !s->message.body_is_final) {
|
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| 394 | syslog(LOG_ERROR, "\n\n *** Error http_body_is_final() should return 1 "
|
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| 395 | "on last on_body callback call "
|
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| 396 | "but it doesn't! ***\n\n");
|
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| 397 | assert(0);
|
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| 398 | }
|
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| 399 |
|
---|
| 400 | s->message.message_complete_cb_called = TRUE;
|
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| 401 | return 0;
|
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| 402 | }
|
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| 403 |
|
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| 404 | http_parser_settings websvr_settings =
|
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| 405 | {
|
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| 406 | websvr_message_begin,
|
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| 407 | websvr_request_url,
|
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| 408 | websvr_response_status,
|
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| 409 | websvr_header_field,
|
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| 410 | websvr_header_value,
|
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| 411 | websvr_headers_complete,
|
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| 412 | websvr_body,
|
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| 413 | websvr_message_complete,
|
---|
| 414 | };
|
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